CAST statement

It must be something I'm overlooking but I keep getting an error message that this statement can't parse.

UPDATE product SET supplier = LEFT(supplier,LEN(supplier-4)) + CAST( '2100' AS varchar(4)) WHERE actualid = 'IS2100-CO2-CO2-0-4-I'

Any help would be greatly appreciated."LEFT(supplier,LEN(supplier-4))" should be "LEFT(supplier,LEN(supplier)-4)"

D'oh!

Also, you don't need to cast a numeric value that is already a string...|||"LEFT(supplier,LEN(supplier-4))" should be "LEFT(supplier,LEN(supplier)-4)"

D'oh!

Also, you don't need to cast a numeric value that is already a string...

thanks for the help i realized after it was too late:D